[CELT-dev] CELT Test case failures

Ralph Giles giles at thaumas.net
Fri Aug 5 13:36:05 PDT 2011

On 5 August 2011 13:08, Andrew Lentvorski <bsder at allcaps.org> wrote:

> In addition, I note that the wikipedia pages on audio formats:
> http://en.wikipedia.org/wiki/Comparison_of_audio_formats
> comments that SILK is *patented*--one of the advantages of CELT was that
> it was based on older technology so patents were less of an issue (I
> recall this from one of the videos, I think).  I also note that SILK
> requires a patent license.  I presume this was discussed on a Vorbis
> list somewhere, could someone give me a pointer so that I can avoid
> rehashing that off-topic discussion on this list.

The plan is to obtain specific patent disclosure and royalty-free
license grants as part of the IETF standardization process. See
for currently available statements in that direction.

Note that the current patent grants are contingent on acceptance as an
IETF standard, so deployments would not be licensed until after the
final RFC is published. Hopefully that will be soon.


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